numpy.triu¶
- numpy.triu(m, k=0)[source]¶
Upper triangle of an array.
Return a copy of a matrix with the elements below the k-th diagonal zeroed.
Please refer to the documentation for tril for further details.
See also
- tril
- lower triangle of an array
Examples
>>> np.triu([[1,2,3],[4,5,6],[7,8,9],[10,11,12]], -1) array([[ 1, 2, 3], [ 4, 5, 6], [ 0, 8, 9], [ 0, 0, 12]])